Thorax! Flashcards
(23 cards)
The trachea bifurcates at approximately the level of which vertebrae?
T5
The large indention on the medial surface of the left lung is termed what?
cardiac notch
The functional unit of the respiratory system is what?
alveoli
Where is the thymus gland located?
superior portion of mediastinum, just behind the manubrium
Which heart valve is located between the left atrium and the left ventricle?
bicuspid or mitral valve
Which vessel supplies blood to the left atrium and ventricle?
left anterior descending artery
The thoracic duct empties into what?
left subclavian vein
Which muscles are located between the tubercle and angle of the ribs and help to elevate the ribs during respiration?
levatores costarum muscles
Which tissue layer of the breast contains the excretory ducts?
glandular tissue
which ribs are considered floating ribs?
11 and 12
Where is the lingula located within the lungs?
inferoanterior surface of cardiac notch
In a chest radiograph, what structure forms the right border of the heart?
right antrum
What is the basic unit of pulmonary structure called?
secondary pulmonary lobule
Where is the foramen ovale located?
interarterial septum
The sinoatrial (SA) node is located where?
Under the epicardium in the superior aspect of the right antrum
Which vessel is typically the most superior of the pulmonary vessels?
left pulmonary artery
Which vessel is typically the most superior of the pulmonary vessels
left pulmonary vessels
Which structure closely covers the outer surface of the lung?
visceral pleura
Which chamber of the heart receives the pulmonary veins?
left atrium
Which structure attaches the diaphragm to the lumbar spine?
crura
Which structure is considered the pacemaker of the heart?
SA node
Which vessel does the circumflex artery branch from?
left coronary artery
Which vessel carries the majority of venous blood return from the heart muscle?
coronary sinus
